This video outlines the valgus and varus tests of the elbow to assess the MCL (ulnar collateral) and LCL (radial collateral) respectively. The examiner passively places the patient's elbow in slight flexion (approx. 2030 degrees), and stabilizes the distal arm with one hand. With the other hand, the examiner displaces the distal forearm either laterally (Valgus) or medially (Varus). Reproduction of the patient's pain +/ joint laxity is a positive sign.